Pile construction



Feb. 23 1926.

w. PRINGLE FILE CONSTRUCTION Filed April 5, 1922 lnuemfiar" @ne Fri 5a, a Qamf Patented Feb. 23, 1926.

WAYNE rnmemaor nmcemw; NEBRASKA? 4 FILE. consummation-.1. i

Application filedA-pil 5, 1922. Serial No. 549,861.-..

To aZZ'w/wmit may. concern;

Beit known that I, WAYNE. .PRINGLE; a citizen of the United. States, residing at Lincoln, Nebraska, have invented certain new and useful Improvements in Pile Construction, of which the following is a specification.

My invention relates primarily to improvements in self-sinking concrete piles and has to do primarily with means for so withdrawing the water from the hole in which the pile is being sunk that the soil around the pile at the surface of the ground will not be washed away, thereby weakening the lateral support of the pile.

In the drawing annexed hereto and forming a part hereof,

Fig. 1 is a broken perspective View of a pile embodying my present improvements.

Fig. 2 is an enlarged longitudinal fragmentary view of the point end of such a pile.

Fig. 3 is a cross-section of such a pile substantially along the plane indicated by the line 33, Fig. 2.

Referring more in detail to the drawing, numeral 1 designates the body of a concrete pile having imbedded therein one or more pipes 2 for the downward transmission of water to be used in loosening the soil around the point of the pile and removing the same by jetting. The fluid-carrying pipes 2 are provided with laterally extending branch pipes 3 which have at their outer extremities upwardly directed nozzles 41-, the purpose of which is to carry upwardly the soil loosened around the point of the pile, as shown in the Bignell patents. The lower ends of the pipes 2 are reduced as shown at to give greater force to the water passing through these pipes, and therefore increase the jetting effect thereof.

Passing longitudinally through the pile is a pipe 6, or a plurality of such pipes, the purpose of which is to withdraw from the hole at the point of the pile a portion of the water forced through the pipes 2. Difliculty has sometimes been experienced in sinking piles, by reason of the fact that the water which is used in excavating the hole for the sinking of the pile has worn away considerable of the pile supporting soil at the surface of the ground, when the water was permitted to flow uncontrolled from the hole. By my present invention I am able to withdraw from the bottom of the hole a su'fiicient amount of the water to prevent anygreat amount oferosionoftlie support:

may be departed from without departing from the spirit of my invention as set forth in this specification and the appended claims.

Having now described my invention, I claim 1. In a self-sinking pile, a channel ertending longitudinally therethrough for the rapid transmission of water to cause removal of soil whereby to permit the pile to sink, in combination with a return flow channel through which a part of the water may be withdrawn to be carried off by suitable piping, whereby to reduce undue erosion by the water of the soil surrounding the pile, said return flow channel having its intake in advance of the outlet of said water transmitting channel.

2. In a self-sinking pile, means for projecting water forwardly of the pile to loosen the soil, means for projecting some of the water upwardly'along the sides of the pile to carry loosened soil upwardly, and means for withdrawing a portion of the water and loosened soil through the pile, said withdrawal means having its intake in advance of the outlet of the projecting means.

3. In a self-sinking pile, a plurality of longitudinally directed water-carrying pipes, a plurality of hollow branches extending laterally from each pipe to project jets of water along the pile, the said pipes opening through the forward end of the pile, in combination with means longitudinally 0f the pile for withdrawing water and loosened soil from the forward end thereof, thereby preventing the water from overflowing the soil around the pile and removing the lateral support thereof.

4. A self-sinking pile, jetting passages in the pile intermediate the center and outside surface of the pile, a return flow passage in the pile for receiving the soil and water at a point forward of the delivery points of the jetting passages, whereby erosion of the soil about the pile is eliminated.

5. A self-sinking pile, jetting passages in the pile intermediate the center and outside surface of the pile, a return flow passage in the pile for receiving the soil and water at a point forward of thedeliverypoints of the jetting passages, whereby erosion of the soil about the pile is eliminated, and branch jetting passages for delivering water to the sides of the pile. I

6. A process of driving piles, comprising forcing a jetting fluid through passages formed in the piles to points rearwardly of the advancing end of the pile,qand withdrawing the loose soil and fluid through a passage formed in the pile from a point at the nose of the pile.

7. A process of driving piles, comprising forcing 1 a jetting fluid through passages formed in the piles to points rearwardly of the advancing end of the pile, withdrawing the loose soil and fluid through a passage formed in the pile from a point at the advancing end of the pile, and forcing jets of fluid at the outer surface of the pile.

In Witness whereof, I hereunto subscribe my name to this specification.

WVAYN E PRINGLE. 

